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发明名称
Improvements in electronic direct-current amplifiers
摘要
申请公布号
GB721055(A)
申请公布日期
1954.12.29
申请号
GB19520014736
申请日期
1952.06.11
申请人
SANGAMO WESTON LIMITED
发明人
LANGFORD ROBERT CHARLES
分类号
H03F3/36
主分类号
H03F3/36
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代理人
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